Hello Erik ;)
I got this Problem when i try to open SquirrelMail ..ERROR: Connection dropped by IMAP server. i installed this script throw virtualmin
when i try RoundCube i got anthoer error Fehler: Verbindung zum Speicherserver fehlgeschlagen in english its ERROR: Failed to connect to server memory or so
i have tried to slove this issue but i coudint
i want also from u plaese a tutorial to help me setup the postfix and SPF and greylisting etc ..